245532730691 has 8 divisors (see below), whose sum is σ = 261659303424. Its totient is φ = 229860427720.

The previous prime is 245532730679. The next prime is 245532730711. The reversal of 245532730691 is 196037235542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 245532730691 - 2⁶ = 245532730627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245532730661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113566325 + ... + 113568486.

It is an arithmetic number, because the mean of its divisors is an integer number (32707412928).

Almost surely, 2^245532730691 is an apocalyptic number.

245532730691 is a deficient number, since it is larger than the sum of its proper divisors (16126572733).

245532730691 is a wasteful number, since it uses less digits than its factorization.

245532730691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227134881.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 245532730691 in words is "two hundred forty-five billion, five hundred thirty-two million, seven hundred thirty thousand, six hundred ninety-one".